Spin fluctuations in superconducting YBa_{2}Cu_{3}O_{6.5}

12 February 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 64 (7), 800-803
https://doi.org/10.1103/physrevlett.64.800

Abstract

Antiferromagnetic spin fluctuations in superconducting

{YBa}_{2}

{Cu}_{3}

O_{6 + x}

have been studied using inelastic neutron scattering. In a crystal with x=0.5 and

T_{c}

=50 K, we have observed spin fluctuations at 12 K having a cross section which increases with increasing excitation energy. The data are consistent with highly overdamped spin waves and a very short spin-spin correlation length.

Keywords

This publication has 16 references indexed in Scilit:

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